CVE-2025-15220
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into SohuTV CacheCloud's login controller, enabling cross-site scripting (XSS) attacks. Remote attackers can execute arbitrary JavaScript in users' browsers when they visit the vulnerable login page. All users of SohuTV CacheCloud up to version 3.2.0 are affected.
💻 Affected Systems
- SohuTV CacheCloud
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal user session cookies, credentials, or perform actions on behalf of authenticated users, potentially leading to account takeover and data theft.
Likely Case
Attackers inject malicious scripts to steal session tokens or redirect users to phishing sites, compromising individual user accounts.
If Mitigated
With proper input validation and output encoding, the attack would fail to execute malicious scripts, limiting impact to attempted exploitation.
🎯 Exploit Status
The exploit is publicly available and requires no authentication, making it easy for attackers to weaponize.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
1. Monitor the official SohuTV CacheCloud repository for security updates. 2. Apply any available patches for versions above 3.2.0. 3. Restart the CacheCloud service after patching.
🔧 Temporary Workarounds
Implement Input Validation and Output Encoding
allAdd server-side validation to sanitize user input in the login controller and implement proper output encoding for all user-controlled data.
Modify src/main/java/com/sohu/cache/web/controller/LoginController.java to add input sanitization and output encoding
Deploy Web Application Firewall (WAF)
allConfigure WAF rules to detect and block XSS payloads targeting the login endpoint.
Configure WAF with XSS detection rules for /login endpoints
🧯 If You Can't Patch
- Isolate the CacheCloud instance behind a reverse proxy with strict input filtering
- Implement Content Security Policy (CSP) headers to restrict script execution
🔍 How to Verify
Check if Vulnerable:
Test the login endpoint with XSS payloads like <script>alert('XSS')</script> and check if scripts execute in response.Check Version:
Check the CacheCloud version in application configuration or via admin interfaceVerify Fix Applied:
After applying fixes, retest with XSS payloads to confirm scripts no longer execute and input is properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /login with script tags or JavaScript code in parameters
- Multiple failed login attempts with suspicious payloads
Network Indicators:
- HTTP requests containing <script>, javascript:, or other XSS patterns in login parameters
SIEM Query:
source="cachecloud" AND (uri_path="/login" AND (request_body LIKE "%<script>%" OR request_body LIKE "%javascript:%"))